Pipe-coupling.



J. H. SHEPHERD. PIPE' GOUPLING.

APPLICATION FILED SEPT. 30, 1910. 1,038,669.

Patentd Sept. 17, 1912.

/NVE/VTOR.

mviTED STATES PATENT oEEicE.

JAMES H. SHEPHERD, OF DENVER, COLORADO, ASSIG-NOR OF ONE-HALF TO JOHN C. REAGAN, OF WHITEPINE, COLORADO.

PIPE-COUPLING.

To all wiz-om t mag/.concern Y Be it known'that I, JAMES H. SHEPHERD, a citizen of the United States of America, residing at Denver, in the county of Deliver and State of Colorado, have invented certain new and useful Improvements in Pipe- Couplings, of which the following is a specilication.

My invention relates to new and useful improvements in couplings of the type designed to adjustably join the ends of hosesections, gas, steam, and water-pipes or other conduits, and its principal object is to provide a contrivance of simple construction by the use of which the joint between two pipesections may eit-her be rendered impervious or be loosened lo entirely separate said sections or to relieve the interposed packing substance from the pressure to which it is ordinarily7 subjected.

Another object of my invention resides in the provision of a readily adjustable means Y whereby the operative parts of the coupling may be locked in their adjusted position thus rendering the device applicable to conduits which by connection with powerdriven machines are constantly subject to vibration.

In the preferred form of my invention, the coupling-means are associated with a valve which is in its closed position when the pipesections are separated, and which establishes communication between said Sections at the saine time that by adjustment ofthe parts,

' the joint between them is rendered fluidtight. Y

In addition to the above named objects, my invention possesses the advantage that' in case of long usage, the pipe-sections may be brought closer together to compensate for reduction in thickness of the resilient packing placed between them.

In the accompanying drawings, in the various views of which like parts are similarly designated, Figure l represents a longitudinal section through the coupling in its preferred form with the valve in the open position, Fig. 2, a similar view, partly in elevation, with the valve in the closed position, Fig. 3, a section taken along the line 3 3, Fig. 1, Fig. 4, a section taken along the line 4 4, Fig. 2, and Fig. 5, a sectional elevation showing a modified construction of the device.

Referring to the drawings by numerals,

Specification of Letters Patent.

Application led September 30, 1910.

YPatented Sept. 17, 1912. Serial No. 584,741.

my improved coupling consists of two cooperative, `axially bored members 2 and 3,

one of which has a cylindrical socket for the reception of a correspondingly formed projection E2al on the other. Both members terminate in exteriorly serrated plugs 2c and 3c for the attachment of hose-sections 4 and the male member 2 has a transverse, taper` ing passage in which a valve plug 5 is rotatablyv fitted. The plug 5 is provided at its extremities, with disk-shaped clamping-elements 6 and 7, one of which is preferably formed integral with the plug and with a laterally extending operating handle Y 8, `while the other is removably applied upon a squared stem 5a of the valve and held in place by means of a nut 9 screwed upo-n the `threaded extension thereof.

The clamping elements 6 and 7 have upon their inner surfaces, annular flanges 6* and 7a the inner faces of which are formed eccentric with relation to the axis of the valve plug, and the female member 3 of the coupling has upon its circumferential surface two seg-mentally shaped cam-ribs 10, the outer, curved surfaces of which engage the eccentric faces of the respective clamping elements when the parts of the coupling areV 'upon a coperatively threaded portion of the male coupling-member to lock the valve and the therewith connected clamping devices in their adjusted position.

`While the lock-nut 12 is used principally to lock the valve in its open position, as shown in Figs. 1 and 3, it may also be used to lock it in its closed position by turning the valve-plug until the ports 63 and 7 c are in register therewith. j

In the modified form shown in Fig. 5, a slender connection 13, is substituted for the valve-plug 5 to connect the clamping elements 6 and 7, so that while the operation of the coupling remains the same, the bores of the members 2 and 3 and the therewith connected hose-sections remain at all times in uninterruptedcommunication. This form Y female members through the ports 6a and 7 of the clamping elements Gand? after which they are imperviously joined by turning vthe latter about their common kaxis which brings the eccentric faces of. their flanges in contact with the convexsurfaces ofthe ribs, thereby gradually drawing the twoniembers toward each other'and against the packing 14 placed between the end of the projection 5a on the male member and the corresponding shoulder in the socket of its correlative. v

While I have shown and described my improved coupling in the best form Vnow known to me, it'will be understood that the construction and arrangement of the various parts comprised there-in may be varied Within the spirit of the invention and that the coperative coupling members may be constructed to connect conduits other than theilexible hose shown in the drawings, without affecting their function in the operation of the device.

Having thus described my invention what I claim and desire to secure by Letters-PatentV is 1. A pipe-coupling comprising tvvo members, Aclamping elements disposed at opposite sides of one of said members to rotate inuni'son about a common axis, and having anges whose inner faces are eccentric to said axis, and a nut adjustable on said inember, the other one of said members having cam-ribs to engage the said faces and the said flanges having recesses to admit said nut so as to lock the element against rotation.

2. A pipe-coupling comprising two members, clamping elements disposed at oppoj site sides of one of said members to rotate j in unison about a common axis, and having l' flanges Whose inner Yfaces are eccentric to 5 said axis, and a nut adjustable on said member, the other one of said members having cam-ribs to engage the'said faces Vand the said flangeshaving ports for the passage of the said ribs and recesses for the admission of the said nut. Y i

3. A pipe-coupling comprising two conduitinembers, a valve having a rot-ary movement/on one of said members to control the flow of fluid therethrough, the other member having a cam-rib, a flange on said valve, the inner surface'of which is circular and eccentric to the axis of rotation of the 'gvalve to clampingly engage with said cam- A:rib when the two members are operatively connected, and the said iange having a port gfor the passage of said rib only, when the valve is in the position in which it obstructs ithe lpassage through the member on-.which it is mounted.

- 4. A pipe coupling comprising two conduit-.members one of which has a cani-rib, a rotary clamping element on the other member, including a flange the l'inner sur- `face of which is eccentric to the axis of ro.n tation of said element, to. clampingly engage saidcam-rib when the members are ioperatively connected, and a nut adjustable @on the other member and adapted to be brought in locking engagement with said element, when the latter is in the position to which it is adjusted to clampingly .connect the said members. Y

5. A pipe coupling comprising two conduit-members one of which has a cam-rib, a @ro-tary clamping element on the other memgber, including a iiange Vthe inner face of which is eccentric to the axis of rotation of said element, to clampingly engage said cam irib when the members are operatively connectech and a nut adjustable on the other jmember, the said flange having a recess to admit said nut whereby to lock said element against rotation when the latter is in the position to which it is adjusted to clamp- Iingly connect the said members. f In testimony whereof I aiiiX my signature lin presence of two'vvitnesses. JAMES II. SHEPHERD.

Witnesses: y

G. J. ROLLANDET.

E. M. KREMPEL.

Conies of this patent may be obtained for five `cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

